Albert p



N0. 770,627. A PATENTBD SEPT. 20, 1904. A. P. BROOMELL.

WATER HEATING APPARATUS.

APPLICATION FILED JUNE 23, 1904.

N0 MODEL.

W/T/VESSES: I IA/VEIVTOR, @fmavu'l Kg 7 Alberf P. BIOOITIQH I I By ATTORNEYS.

IJNiTED STATES Patented September 20, 1904:.

PATENT FFIGE.

WATER-HEATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 770,627, dated September 20, 1904.

Application filed June 23, 1904. Serial No. 213,871- (No model.)

To aZZ whom it may concern.-

Be it known that I, ALBERT P. BROOMELL, a citizen of the United States, and a resident of York, in the county of York and State of Pennsylvania, have made certain new and useful Improvements in VVater-Heating Apparatus, of which the following is a specification.

My invention is an improvement in waterheating apparatus commonly called fueleconomizers, and has for an object to provide a novel construction whereby to prevent the splitting of the headers from the pressure exerted in forcing the tubes or pipes into such headers; and the invention'consists in certain novel constructions and combinations of parts,

as will be hereinafter described and claimed.

In the drawings, Figure l isa sectional elevation of an apparatus embodying my invention. Fig. 2 is a detail plan View of a portion of one of the headers, the pipes or tubes being removed. Fig. 3 is a cross-section on about line 3 3 of Fig. 2, and Fig. 4 shows a different form of bolt from that illustrated in Fig. 3.

In building heating apparatus and in constructing the so called economizers, as shown in Fig. 1, it is customary to force the tubes A into the tubular headers B by hydraulic pressure, the joints being tapered. In pressing the series of tubes A into the header a tremendous strain is brought on the metal, and great difiiculty has been experienced because of the headers splitting from socket to socket. Higher pressures are demanded from time to time and difliculty is experienced in so constructing the headers as to stand the pressure. It is found in practice that the tendency is for the headers to split longitudinally from socket to socket, and it has proved desirable to provide means by which to prevent this tendency to split. This result is accomplished by providing the headertube between the pipe-sockets for the heatingpipes A with stay devices, of steel or other metal of high tensile strength, operating transversely the header, and so bracing the same as to prevent its splitting between the adjacent sockets.

In the construction shown and as preferred the header-tube B is provided with the short projecting bosses B, in which are formed the sockets for the heating-pipes A, and between the adjacent bosses B, I form the header B with longitudinally-extending webs C, which arch or round upwardly between the bosses B, as best shown in Figs. 1 and 2.

The transversely-operating stay device is shown in the form of a rivet D, Figs. 2 and 3, or stay-bolt E, Fig. 4, extending transversely through the web C at a point about midway between the adjacent bosses B, and headed at their opposite ends in such manner as to bind the web transversely, and so brace the same as to prevent the longitudinal splitting of the header-tube between the sockets. In the construction shown in Figs. 2 and 3 the stay-bolt D is in the form of a rivet, having a head D at one end and riveted at its other end D thus forming heads at the opposite ends of the rivet and on opposite sides of the web C. It may be desirable in some instances to tap the bolt-hole formed through the web G and run in a threaded stay-bolt, riveting ing the ends of same as shown at E in Fig. 4:.

The construction is simple, inexpensive, and is found in practice to efliciently serve the purpose for which it is intended.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The improvement in heating apparatus herein described comprising the header-tube having projecting bosses forming sockets for the heating-pipes and provided between the adjacent bosses with longitudinally-extending webs rounded upwardly between their adjacent bosses, the heater-pipes pressed into their respective sockets in the header-tube and the stay-bolts extending transversely through the webs between the adjacent sockets and headed on opposite sides of the web by which to brace the same whereby to prevent the splitting of v the header-tube between the sockets.

2. A header-tube for heaters having pipesockets and provided between the same with longitudinal webs extending from socket to socket and with transverse stay-bolts passed through the said webs between the adjacent sockets, the stay-bolts being extended in a direction at a right angle to the axes of the sockets.

3. A header-tube for heaters having at in-' tervals pipe-sockets for the heating-pipes and provided between such sockets with transversely-operating stay devices whereby to prevent the splitting of the header-tube between the adjacent sockets, the stay devices extending transversely across the line of splitting strain developed in rolling the tubes into the brace the same whereby to prevent thesplitting of the tube from socket to socket.

5. A heater having a header-tube provided with sockets and with pipes pressed into said sockets and provided between the sockets with longitudinal webs and with transverse staybolts extending through said webs, and transversely across the line of splitting strain developed in pressing the pipes into the sockets.

6. Aheader-tube for heaters having sockets for the heating-pipes and webs extending from said sockets and arranged in a plane parallel with the axes of the sockets, and stay devices extending transversely through the said webs substantially as set forth.

ALBERT P. BROOMELL. Witnesses:

ANDREW J. HERSHEY, GEO. S. SCHMIDT. 

